Today's Message Index:
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1. 12:50 AM - Re: Adjusting screw torque (4aplat)
2. 02:38 AM - Re: Re: Adjusting screw torque (James, Clive R)
3. 02:39 AM - Re: Re: Adjusting screw torque (James, Clive R)
Message 1
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| Subject: | Re: Adjusting screw torque |
It's a 2200 serial #570
I'm not looking for the torque for the cylinder heads but for the valve clearance
adjusting screw (and nut)
MicheL
Clive J wrote:
>
> What vintage is your engine? And the heads?
> Regards, Clive
>
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315686#315686
Message 2
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| Subject: | Re: Adjusting screw torque |
For the same reason on older heads where they deform check by backing
off and if necessary take the bolts out and clear the hole out with a
drill bit.
My old heads on the 2200 twisted badly (#596) and I had trouble getting
the head bolts out for this reason.
CJ
________________________________
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Rob
Turk
Sent: 14 October 2010 07:31
Subject: Re: JabiruEngine-List: Re: Adjusting screw torque
One remark on this. The text mentions not to back off the studs. After
working with Roger on my engine and discussing I am convinced that's bad
advice.
The bolts go all the way through the head and screw into the cylinder.
On my engine, the exposed threads had corrosion on them. This corrosion
caused the bolts not to move at 24lbs even though the heads were
starting to leak. Do check for corrosion, use WD40 or similar to
lubricate the corroded end and back off the stud a little bit. Then
retighten at 24lbs/ft (or whatever your vintage manual tells you).
Rob
----- Original Message -----
From: James, Clive R <mailto:clive.james@uk.bp.com>
To: jabiruengine-list@matronics.com
Sent: Wednesday, October 13, 2010 10:10 PM
Subject: RE: JabiruEngine-List: Re: Adjusting screw torque
So from the manual below, if you can see the 'zapgrab' picture
generally it's 20-22ft lbs
This is from section 7. This is manual has been updated from the
one I got with my engine, I only have that on paper and I recall that
being 18 ft lbs, the front cover of this manual I just downloaded from
the Jab Aus site says it's applicable to all 2200a engines. The 'soft
headed' ones all surely bend at 22 lbs...
What vintage is your engine? And the heads?
Regards, Clive
-----Original Message-----
From: James, Clive R
Sent: 13 October 2010 21:00
To: 'jabiruengine-list@matronics.com'
Subject: RE: JabiruEngine-List: Re: Adjusting screw torque
Section 5.3 'Initial after 25 hours checks'
in all the manuals I have here.
I recall lately there is two torques, one for building the
engine and one for checking afterwards.
The setting in 5.3 is the one to check for.
What is your serial number of the engine and what engine?
2200/3300?
Regards, Clive
Message 3
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| Subject: | Re: Adjusting screw torque |
Michel, that was the one where we don't have a reading and a suggested
you practised a bit with locking and un locking the screw until you
'felt' it was right.
Ring spanner hand tight.
Good discussion spawned anyhow,
Regards, Clive
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of
4aplat
Sent: 14 October 2010 08:48
Subject: JabiruEngine-List: Re: Adjusting screw torque
--> <ulm@ascenseur-parisien.com>
It's a 2200 serial #570
I'm not looking for the torque for the cylinder heads but for the valve
clearance adjusting screw (and nut)
MicheL
Clive J wrote:
>
> What vintage is your engine? And the heads?
> Regards, Clive
>
--------
the French Jabiru Forum
http://jabiru-owner.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=315686#315686
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